40223047 has 2 divisors, whose sum is σ = 40223048. Its totient is φ = 40223046.

The previous prime is 40223011. The next prime is 40223069. The reversal of 40223047 is 74032204.

It is an a-pointer prime, because the next prime (40223069) can be obtained adding 40223047 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40223047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40223077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111523 + 20111524.

It is an arithmetic number, because the mean of its divisors is an integer number (20111524).

Almost surely, 2^40223047 is an apocalyptic number.

40223047 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223047 is an equidigital number, since it uses as much as digits as its factorization.

40223047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 40223047 is about 6342.1642205165. The cubic root of 40223047 is about 342.6296864453.

The spelling of 40223047 in words is "forty million, two hundred twenty-three thousand, forty-seven".